To tie it in with the Danish royal family a bit more, here's a few similarities/differences I noticed about the movie to the real family
1. The queen's casual outfits resemble some that HM wears in real life (Normally when she's on vacation, but still).
2. People actually call "Eddie" Crown Prince a few times (Then resort back to Prince, but, hey, the first few times it was CP!).
3. Some of the jewelery (necklaces, brooches) resemble some of the Danish RF's real jewels.
4. The CP has a love of Fast cars
5. The Prince has a boyish look to him. (He reminded me of a cross of Joachim and Frederik).
The differences
1. Names
2. King
3. Appparently Denmark does abdications and coronations, who knew?
4. While the necklaces were great, the tiara the queen wears is, well, horrid. They spent all that money on realistic looking jewels, and then give her a rhinestone tiara. The little princess had a better looking one! I'd have loved to see a copy of the Orange-Nassau tiara, or the Emerald set instead.